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Before he came down here, it never snowed. And afterwards, it did. I don’t think it would be snowing now if he weren’t still up there. Sometimes you can still catch me dancing in it.
— Kim ‧ Edward Scissorhands

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker connects the arrival of snow with someone's presence and takes its continuation as a sign that he remains nearby. The reasoning gives the weather a personal meaning. Ending with dancing turns that belief into a continuing relationship with a memory, expressed through an ordinary physical pleasure.
Context reviewed